Stripper for removing coils of wire from a drawing head



Nov. 22, 1932. c. D. JOHNSON 1,888,727 STRIPPER FOR REMOVING COILS 0FWIREFROM A DRAWJING HEAD Filed Feb. 9, 1951 a SheetS -Sheet 1 Fig. i

lnvenTm': Chafles D. Johnson WW Wszf ATTys.

Nov. 22, 1932. c. D. JOHNSON 1,833,727

STRIPPER FDR REMOVING COILS OF WIRE FROM A DRAWING HEAD Filed Feb. 9.1931 '3 Sheets-Sheet 2 lnve nTov.

Chofles D. Johnson WM Maw I ATTys. a.

Nov. 22, 1932. c, JOHNSON 1,888,727

' STRIPPER FOR REMOVING COILS OF WIRE FROM A DRAWING HEAD Filed Feb. 9,1931 3 Sheets-Sheet 3 Fig.5

\nvenTor. Chufles D. Johnson WW WIW ATrys Patented Nov. 22, 1932 i vUNITED S AT S" & WIRE COMPANY, me, OF MASSACHUSETTS PATENT OFFICECHARLES 1 .JQHINSQN or WORCESTER, AS H ETTS. A IG' QR To JOHNSQN STEELwow-sue, MASSACHUSETTS, A CORPORATION OF S BiPI B REMOVING cen r FROMDRAWING I 'This invention relates to strippers such as are used in wiremills for removing bun.-

dles or coils-of wire from the drawing heads or drawing blocks.

In the manufactureof wire it is customary to draw the wire through diesto reduceit tothe proper size and then to wind the drawn wire on adrawing block which is in the na ture of a rotary drum. The drawingblock io usually' furnishes the power necessary to draw the wire throughthe dies.

any drawing block the coil or bundle of wire is removed from the block.This is common "1 done by means of an apparatus termed a stripper andthe present invention "relates to a device ofthis type. I 1

One of the objects of the invention is to provide a stripper forthispurpose which 26 1s designed to operate from the outside of the coilof wire, and which, therefore, may be describedas an"outs1de stripper,as distinguished from thestripp'er'wh'ich is now;

commonly used and which operates-from the inside of the coilsof wire,and which'may be referred to as an inside stripper] 0116'advantageresulting from the use of the outside stripper is that it canbe used" with a water cooled drawing block without materially reducingthe water cooling area;

In order togive' an understanding of the invention I have illustrated inthe drawings;

aselected embodiment thereof Which *Will now be described after whichthenove'l fea- Fig. 2 shows the stripper closed and in the act ofremoving a bundle of wire fromthe" block; 4 Fig. 3 is atop plan view ofthe stripper -shown in in Fig. 2with apart broken out; Fig. 4'. isasec'tion on the line 66, Fig; 2.;

Fig. 5 is a section on the line 7 7, Fig. 2;

Fig.6 is a sectionntheline' 8+8, Fig.2;

In the drawings 1 indicates a rotary draw ing'block ordrum'onwhich wire2is being After a sufficient amount of wire has accumulated on yoke 15.

Application filed. February 9,1931. SeriaI Ne; 514,509.

wound, It will be understood,o f course, thatv the drum is powerdrivenaiid in the ilhlS-r trated embodiment of the inven'tion the druniis a water cooled drum, it havingan interior chamber through which wateris flowing topreventithe drumfrom'being heated from the heat of thewireias it-is wound thereons. e i 'As stated. above one. purpose of thepres ent invention-is to provide a'stripper which can be used inconnection with a water cooled block without interfering with the water0001- I ing operation by reducing the -size'of the water chamber andforthis purpose the strip per is made to act .on the wire bundle fromthe outside rather than from the inside. d

A form of stripper embodying my invenper comprises a supporting frame?)which is tion is shown in the drawings. This stripformed with a centralhub member 4 and sup porting arms 5 rigid therewith and extendingradially; therefrom. The supporting.

frame also includes a member 6 which is connectedlto thearms 5 bysuitable linksil, The

member 6 is shown as. having an eye '8 to" which a supportingcable' orchain 9 maybe attached. '1

Each supporting arm 5 has a stripper arm 10 pivoted toits outer end asat 11. The low-' er end of each stripper arm isbentinward ly l 8'0 toconstitute a wire-engaging finger '12. The l upper end of eachstripperarm is "also. bi t' inwardly as at 13 and is connected by a link14 to a yoke member 15.. Theyoke member 15 is swivelled on the upper-endofan actu ating sleeve 16 whichextends through and is slidably mountedin the hub 4. This sleeve '16 is shown as having an annular groove l7atits upper end iniwhich the yoke 15 is received;

The yoke '15 and sleeve 16 are thus held from movement relative to eachother in the? direction'of the axis-of the sleeve but the j sleeve'is'capable ofturnin'gin the hubl andf With this construction thevertiealmove- 1 i ment of the sleeve1 6 through thehub lhwill operate throughthe yoke 15 andlinks 14 to swing the stripper arms 10 about their pivots11. When the sleeve'is infits lowered position shown in'Fig. 2 the lowerends of the st-ripper arms will be spread from each otherand through thesupporting arms 5and the pivotal connections 11 of said arms. with the Vstripper arms. I

, 'When the sleeve is raised through the hub into theposition shown inFig. -6;-the-lower end of the stripper arms-will be moved toward eachother and the latter will be in closed position.

. The e-mass er" Sa -spas a es. *2 p the locking projection 23 will havebeen carried to the lower end of the slot 24 and fromthe drawing block 1consists in lowering the stripper into the'position shown in v gersl2zjinto the horizontal grooves 20.uncle'r- 19. andsaid fingers willstrip the coil .18 of fiwire fromthe drawingblock. During this strippingoperation the lifting. force forlifting the strippervarms is appliedthereto- 7 through the'upper ends. of the inwardly-dierected, portions13 thereof 'a's will be present- The head 6 is shown as having a loeking22 secured thereto axially thereof and this;

locking pin extends into the sleeve 16-as shown 7 Y best in Fig.6. Thelower end ofithe locking 91 pin 22.11% a projection'orfinger 23-extending laterally therefrom througha slot 24.. formed V in thesleevej16'. This slot has'a vertical por- T tion 25 and a horizontallooking portion 26 at its lower end. 27 indicates an arm or han- 5- d1secured-to the sleeve 16 and by which the latter may beturned. 1

in adjusted position by a setnut 30; I I

,The cjlosing of the stripper arms isaccomplished by the engagement ofthepstop screw 29-with the upper. end 31 of the spindle ofthe drumorldrawingblook 1 during thelowering of the stripper. Fig. 1 shows thestripper, with the} stripper arms open,'.be

ing lowered into position to engage the wire j and. with the stop;screiwf29 about-Ito: engage the upper end 31 of the blockspindle. Duringfurther lowering? movement the screw.

29- engages {the upper end3ljof the spindle therebypreventing furtherdownward'movementof the'sleeve 16 and as'the lowering-of- '6 ;Tthesupporting frame of the stripper con-- Fig. 11 while the stripper armsare in open JQE inoperative position during-which operation the:fingersl12atthe lower ends; of :said arms f1 pass down outside :o'fthe'coil of,wire on the drawing block 1, and'then closing the 'strip- Vper armsbymovingthem'into. the dotted line v V position Fig. 2therebyfto introduce thefine' arms arethus in their. closed position thelifting force-required ;to raise the stripper neath the wire on theblock, and thereafter. 90 1 'to. raise thestripper withithe fingers inthe "elosedlposit-ion as shown in full lines-Fig. 2,duringwhichoperations thetips of the fin gersel2fwill move upwardly inthe. grooves tinues the hub 4 and supportingarms 5 will move downwardlyrelative to the sleeve 16,

or in other words, the sleeve 16wi1lhave an upward movement relative tothe supporting frame. ,This' relative -movement operates through the lug15 and arms 14 to close the ing block; .u

stripper. arm's into the, position shown in;

When the stripper are fully closed theioperator then. grasps the handle27* and turns the sleeve to carry the projection {23 into. thehorizontallocking portion '26; of the 'slot 24' as indicatedin Fig; 2. Thislocksthe sleeve .16 in: its raised position relative tothe hub 4 and thuslocks the, stripper arms in'their closed relation. 'Whenthestripper andthe wire bundle is transmitted"from-the lifting oablei9 tothelocking pin22 and thrOughthe projection 23 and, slot 26 tothe' sleeve16 andfrom thesleeve 16 through-the I 7 links 14 tothefupper ends of the stripper"arms so that the stripper arms laresupportedj from their upper ends andare'thus held *in their closedrelation. r q 7 I claim: 5

1. A stripper for stripping wire bundles from adrawing bloo'k,;sa=idstripper comprising a supportingframe having a central hubandradiallyeextendingarms, stripper arms pivotally mounted tofsaidradially-extend: ing arms; each stripper arm having at'itslowe er end aninwardly-directed finger, a: sleeve member extending through andslidably 1 mounted in saiduhub, links connecting the";

upper ends of s'ai'dfstripper arms tosaidsleeve,movement' Iof'the sleevethrough the hub swinging the stripper arms from inoperative to operativeposition, (and means to lock said arms in their operativeposition.

2. A stripper for stripping wire bundles;

from adrawing block, said stripper compris-p ing a supporting frame 1having a central hub and radially-extending arms, strips per armspivotallymounted to said radiallyextending arms, each jstripper' armhaving at its lower end an inwardlyrdirectedgfinger,

a sleeve member extending through andslidably mounted in said hub,-links connecting the upper ends of saidvstr'ipper arms to said sleeve,upward movement of said .sleeve. through said hub 'swinging'saidarmsfrom theirv inoperative to operative position, and means to "lock thesleeve infitsfraised position.

8. A stripper. wire from a drawing block, said stripper-j.eomprisinglasupporting framehaving. a centralhub, r a- I dially-extending supportingarms rigid therewith and a head connected to said arms and provided withmeans for the attachment of a suspending cable, a stripper arm pivotallyconnected to the outer end of each supporting arm, each stripper armhaving an 4. A stripper for stripping wire from a drawing block, saidstripper comprising a supporting frame having a central hub,radially-extending supporting arms rigid therewith and a head connectedto said arms and provided with means for the attachment of a suspendingcable, a stripper arm pivotally connected to the outer end of eachsupporting arm, each stripper arm having an inwardly-directed finger atits lower end, a sleeve slidably mounted through said hub,

means connecting the upper end of each stripper arm to said sleeve,upward move ment of the sleeve through the hub operating to swing thestripper arm from open to closed position, a locking pin secured to saidhead and extending into said sleeve, the latter having a vertical slotwith an offset portion and a projection carried by said locking pin andoperating in said slot to lock 7 I the sleeve in raised position.

In testimony whereof, I have signed my name to this specification.

CHARLES D. JOHNSON.

